procurement of vacuum pumps for seal oil system installed for unit no. 1 and 2 at 2x600mw sstpp, mppgcl, dongalia , rotary vane vacuum pump, (existing model no.- ssp-200-d new design- acmevac make) with motor technical specifications: technical data of pump: rated speed: 1370 rpm, flow medium: air/hydrogen and oil vapour mixture flow medium temperature: 70 deg. c, max. flow: 162 litres/min. final pressure including gas ballast: 5x10-3 mbar, water vapour capability: 25mbar technical data of motor: nominal rating: 0.37 kw, voltage: 415v (+/- 10%) frequency: 50 hz (+/- 5%), rated current: 1.25 a rated speed: 1370 rpm, insulation class: f protection class: ip-55, motor enclosure: tefc material of construction:, oil chamber: aluminium/cs (is: 2062) stator: c.i., rotor: c.i. vanes: fibre, inlet condensate chamber: ss-304 exhaust recycler: ss-304. or equivalent make of same specification mentioned above